gen-egg-recipes: Use xz to provide lzma dependence
gen-egg-recipes: Use xz to provide lzma dependence

lzma recipe was removed from meta-openembedded as of commit
1d76ab017a6e127c2da08f0c00076ddb63ee2b44. xz recipe provides
necessary dependence for lzma.

Change-Id: I3725aebb39c573e91b4dff646da53186fc82bd9d
Signed-off-by: Fabio Berton <698e00bc51ed22392b375ef5a2fc95be5c8355a9@ossystems.com.br>

OSSystems/meta-chicken,OSSystems/meta-chicken,OSSystems/meta-chicken